lib: Move non-register things out of intel-gpu-tools.h

Right now almost everything in there concerns itself with register
access. Move everything else out (into drmtest.h for lack of better
place) to prepare for api documentation.

Also rename intel_drm.c to intel_os.c since it contains OS, not
drm abstractions.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

lib/intel_os.c

@@ -0,0 +1,158 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <err.h>
+#include <assert.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#ifdef HAVE_STRUCT_SYSINFO_TOTALRAM
+#include <sys/sysinfo.h>
+#elif defined(HAVE_SWAPCTL) /* Solaris */
+#include <sys/swap.h>
+#endif
+
+#include "intel_gpu_tools.h"
+#include "i915_drm.h"
+
+uint64_t
+intel_get_total_ram_mb(void)
+{
+	uint64_t retval;
+
+#ifdef HAVE_STRUCT_SYSINFO_TOTALRAM /* Linux */
+	struct sysinfo sysinf;
+	int ret;
+
+	ret = sysinfo(&sysinf);
+	assert(ret == 0);
+
+	retval = sysinf.totalram;
+	retval *= sysinf.mem_unit;
+#elif defined(_SC_PAGESIZE) && defined(_SC_PHYS_PAGES) /* Solaris */
+	long pagesize, npages;
+
+	pagesize = sysconf(_SC_PAGESIZE);
+        npages = sysconf(_SC_PHYS_PAGES);
+
+	retval = (uint64_t) pagesize * npages;
+#else
+#error "Unknown how to get RAM size for this OS"
+#endif
+
+	return retval / (1024*1024);
+}
+
+uint64_t
+intel_get_total_swap_mb(void)
+{
+	uint64_t retval;
+
+#ifdef HAVE_STRUCT_SYSINFO_TOTALRAM /* Linux */
+	struct sysinfo sysinf;
+	int ret;
+
+	ret = sysinfo(&sysinf);
+	assert(ret == 0);
+
+	retval = sysinf.freeswap;
+	retval *= sysinf.mem_unit;
+#elif defined(HAVE_SWAPCTL) /* Solaris */
+	long pagesize = sysconf(_SC_PAGESIZE);
+	uint64_t totalpages = 0;
+	swaptbl_t *swt;
+	char *buf;
+	int n, i;
+
+	if ((n = swapctl(SC_GETNSWP, NULL)) == -1) {
+	    perror("swapctl: GETNSWP");
+	    return 0;
+	}
+	if (n == 0) {
+	    /* no error, but no swap devices either */
+	    return 0;
+	}
+
+	swt = malloc(sizeof(struct swaptable) + (n * sizeof(swapent_t)));
+	buf = malloc(n * MAXPATHLEN);
+	if (!swt || !buf) {
+	    perror("malloc");
+	} else {
+	    swt->swt_n = n;
+	    for (i = 0 ; i < n; i++) {
+		swt->swt_ent[i].ste_path = buf + (i * MAXPATHLEN);
+	    }
+
+	    if ((n = swapctl(SC_LIST, swt)) == -1) {
+		perror("swapctl: LIST");
+	    } else {
+		for (i = 0; i < swt->swt_n; i++) {
+		    totalpages += swt->swt_ent[i].ste_pages;
+		}
+	    }
+	}
+	free(swt);
+	free(buf);
+
+	retval = (uint64_t) pagesize * totalpages;
+#else
+#warning "Unknown how to get swap size for this OS"
+	return 0;
+#endif
+
+	return retval / (1024*1024);
+}
+
+
+/*
+ * When testing a port to a new platform, create a standalone test binary
+ * by running:
+ * cc -o porttest intel_drm.c -I.. -DSTANDALONE_TEST `pkg-config --cflags libdrm`
+ * and then running the resulting porttest program.
+ */
+#ifdef STANDALONE_TEST
+void *mmio;
+
+int main(int argc, char **argv)
+{
+    printf("Total RAM:  %" PRIu64 " Mb\n", intel_get_total_ram_mb());
+    printf("Total Swap: %" PRIu64 " Mb\n", intel_get_total_swap_mb());
+
+    return 0;
+}
+#endif /* STANDALONE_TEST */